From: Haven Hawley
> I am seeking information about American 19th-century
> type (primarily for text) and legibility.
Although readability research started in 1845 (Valerius),
it wasn't until the very end of the 19th century that it
became formal and focused (Javal).
The first type design I know of to account for legibility
issues (outside of some funky academic experiments) is in
fact ATF's Clearface of 1907.